* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
#include "config.h"
#endif
-#include "replacements.h"
-
#include "str7x.h"
-#include "flash.h"
-#include "target.h"
-#include "log.h"
#include "armv4_5.h"
-#include "algorithm.h"
#include "binarybuffer.h"
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-str7x_mem_layout_t mem_layout[] = {
+str7x_mem_layout_t mem_layout_str7bank0[] = {
{0x00000000, 0x02000, 0x01},
- {0x00002000, 0x02000, 0x01},
- {0x00004000, 0x02000, 0x01},
- {0x00006000, 0x02000, 0x01},
- {0x00008000, 0x08000, 0x01},
- {0x00010000, 0x10000, 0x01},
- {0x00020000, 0x10000, 0x01},
- {0x00030000, 0x10000, 0x01},
- {0x000C0000, 0x02000, 0x100},
- {0x000C2000, 0x02000, 0x100},
- {0,0},
+ {0x00002000, 0x02000, 0x02},
+ {0x00004000, 0x02000, 0x04},
+ {0x00006000, 0x02000, 0x08},
+ {0x00008000, 0x08000, 0x10},
+ {0x00010000, 0x10000, 0x20},
+ {0x00020000, 0x10000, 0x40},
+ {0x00030000, 0x10000, 0x80}
};
-int str7x_register_commands(struct command_context_s *cmd_ctx);
-int str7x_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
-int str7x_erase(struct flash_bank_s *bank, int first, int last);
-int str7x_protect(struct flash_bank_s *bank, int set, int first, int last);
-int str7x_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
-int str7x_probe(struct flash_bank_s *bank);
-int str7x_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int str7x_protect_check(struct flash_bank_s *bank);
-int str7x_erase_check(struct flash_bank_s *bank);
-int str7x_info(struct flash_bank_s *bank, char *buf, int buf_size);
-
-flash_driver_t str7x_flash =
-{
- .name = "str7x",
- .register_commands = str7x_register_commands,
- .flash_bank_command = str7x_flash_bank_command,
- .erase = str7x_erase,
- .protect = str7x_protect,
- .write = str7x_write,
- .probe = str7x_probe,
- .erase_check = str7x_erase_check,
- .protect_check = str7x_protect_check,
- .info = str7x_info
+str7x_mem_layout_t mem_layout_str7bank1[] = {
+ {0x00000000, 0x02000, 0x10000},
+ {0x00002000, 0x02000, 0x20000}
};
-int str7x_register_commands(struct command_context_s *cmd_ctx)
+static int str7x_get_flash_adr(struct flash_bank_s *bank, uint32_t reg)
{
-
- return ERROR_OK;
+ struct str7x_flash_bank *str7x_info = bank->driver_priv;
+ return (str7x_info->register_base | reg);
}
-int str7x_get_flash_adr(struct flash_bank_s *bank, u32 reg)
+static int str7x_build_block_list(struct flash_bank_s *bank)
{
- str7x_flash_bank_t *str7x_info = bank->driver_priv;
- return (str7x_info->flash_base|reg);
-}
-
-int str7x_build_block_list(struct flash_bank_s *bank)
-{
- str7x_flash_bank_t *str7x_info = bank->driver_priv;
+ struct str7x_flash_bank *str7x_info = bank->driver_priv;
int i;
int num_sectors;
-
+ int b0_sectors = 0, b1_sectors = 0;
+
switch (bank->size)
{
case 16 * 1024:
- num_sectors = 2;
+ b1_sectors = 2;
break;
case 64 * 1024:
- num_sectors = 5;
+ b0_sectors = 5;
break;
case 128 * 1024:
- num_sectors = 6;
+ b0_sectors = 6;
break;
case 256 * 1024:
- num_sectors = 8;
+ b0_sectors = 8;
break;
default:
- ERROR("BUG: unknown bank->size encountered");
+ LOG_ERROR("BUG: unknown bank->size encountered");
exit(-1);
}
-
- if( str7x_info->bank1 == 1 )
+
+ num_sectors = b0_sectors + b1_sectors;
+
+ bank->num_sectors = num_sectors;
+ bank->sectors = malloc(sizeof(struct flash_sector) * num_sectors);
+ str7x_info->sector_bits = malloc(sizeof(uint32_t) * num_sectors);
+
+ num_sectors = 0;
+
+ for (i = 0; i < b0_sectors; i++)
{
- num_sectors += 2;
+ bank->sectors[num_sectors].offset = mem_layout_str7bank0[i].sector_start;
+ bank->sectors[num_sectors].size = mem_layout_str7bank0[i].sector_size;
+ bank->sectors[num_sectors].is_erased = -1;
+ bank->sectors[num_sectors].is_protected = 1;
+ str7x_info->sector_bits[num_sectors++] = mem_layout_str7bank0[i].sector_bit;
}
-
- bank->num_sectors = num_sectors;
- bank->sectors = malloc(sizeof(flash_sector_t) * num_sectors);
-
- for (i = 0; i < num_sectors; i++)
+
+ for (i = 0; i < b1_sectors; i++)
{
- bank->sectors[i].offset = mem_layout[i].sector_start;
- bank->sectors[i].size = mem_layout[i].sector_size;
- bank->sectors[i].is_erased = -1;
- bank->sectors[i].is_protected = 1;
+ bank->sectors[num_sectors].offset = mem_layout_str7bank1[i].sector_start;
+ bank->sectors[num_sectors].size = mem_layout_str7bank1[i].sector_size;
+ bank->sectors[num_sectors].is_erased = -1;
+ bank->sectors[num_sectors].is_protected = 1;
+ str7x_info->sector_bits[num_sectors++] = mem_layout_str7bank1[i].sector_bit;
}
return ERROR_OK;
}
-/* flash bank str7x <base> <size> 0 0 <str71_variant> <target#>
+/* flash bank str7x <base> <size> 0 0 <target#> <str71_variant>
*/
-int str7x_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank)
+FLASH_BANK_COMMAND_HANDLER(str7x_flash_bank_command)
{
- str7x_flash_bank_t *str7x_info;
-
+ struct str7x_flash_bank *str7x_info;
+
if (argc < 7)
{
- WARNING("incomplete flash_bank str7x configuration");
+ LOG_WARNING("incomplete flash_bank str7x configuration");
return ERROR_FLASH_BANK_INVALID;
}
-
- str7x_info = malloc(sizeof(str7x_flash_bank_t));
+
+ str7x_info = malloc(sizeof(struct str7x_flash_bank));
bank->driver_priv = str7x_info;
-
- if (strcmp(args[5], "STR71x") == 0)
+
+ /* set default bits for str71x flash */
+ str7x_info->busy_bits = (FLASH_LOCK | FLASH_BSYA1 | FLASH_BSYA0);
+ str7x_info->disable_bit = (1 << 1);
+
+ if (strcmp(args[6], "STR71x") == 0)
+ {
+ str7x_info->register_base = 0x40100000;
+ }
+ else if (strcmp(args[6], "STR73x") == 0)
{
- str7x_info->bank1 = 1;
- str7x_info->flash_base = 0x40000000;
+ str7x_info->register_base = 0x80100000;
+ str7x_info->busy_bits = (FLASH_LOCK | FLASH_BSYA0);
}
- else if (strcmp(args[5], "STR73x") == 0)
+ else if (strcmp(args[6], "STR75x") == 0)
{
- str7x_info->bank1 = 0;
- str7x_info->flash_base = 0x80000000;
+ str7x_info->register_base = 0x20100000;
+ str7x_info->disable_bit = (1 << 0);
}
else
{
- ERROR("unknown STR7x variant");
+ LOG_ERROR("unknown STR7x variant: '%s'", args[6]);
free(str7x_info);
return ERROR_FLASH_BANK_INVALID;
}
-
- str7x_info->target = get_target_by_num(strtoul(args[6], NULL, 0));
- if (!str7x_info->target)
- {
- ERROR("no target '%s' configured", args[6]);
- exit(-1);
- }
str7x_build_block_list(bank);
-
+
+ str7x_info->write_algorithm = NULL;
+
return ERROR_OK;
}
-u32 str7x_status(struct flash_bank_s *bank)
+static uint32_t str7x_status(struct flash_bank_s *bank)
{
- str7x_flash_bank_t *str7x_info = bank->driver_priv;
- target_t *target = str7x_info->target;
- u32 retval;
+ target_t *target = bank->target;
+ uint32_t retval;
- target->type->read_memory(target, str7x_get_flash_adr(bank, FLASH_CR0), 4, 1, (u8*)&retval);
+ target_read_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), &retval);
return retval;
}
-u32 str7x_result(struct flash_bank_s *bank)
+static uint32_t str7x_result(struct flash_bank_s *bank)
{
- str7x_flash_bank_t *str7x_info = bank->driver_priv;
- target_t *target = str7x_info->target;
- u32 retval;
+ target_t *target = bank->target;
+ uint32_t retval;
+
+ target_read_u32(target, str7x_get_flash_adr(bank, FLASH_ER), &retval);
- target->type->read_memory(target, str7x_get_flash_adr(bank, FLASH_ER), 4, 1, (u8*)&retval);
-
return retval;
}
-int str7x_blank_check(struct flash_bank_s *bank, int first, int last)
+static int str7x_protect_check(struct flash_bank_s *bank)
{
- str7x_flash_bank_t *str7x_info = bank->driver_priv;
- target_t *target = str7x_info->target;
- u8 *buffer;
- int i;
- int nBytes;
-
- if ((first < 0) || (last > bank->num_sectors))
- return ERROR_FLASH_SECTOR_INVALID;
-
- if (str7x_info->target->state != TARGET_HALTED)
- {
- return ERROR_TARGET_NOT_HALTED;
- }
-
- buffer = malloc(256);
-
- for (i = first; i <= last; i++)
- {
- bank->sectors[i].is_erased = 1;
-
- target->type->read_memory(target, bank->base + bank->sectors[i].offset, 4, 256/4, buffer);
-
- for (nBytes = 0; nBytes < 256; nBytes++)
- {
- if (buffer[nBytes] != 0xFF)
- {
- bank->sectors[i].is_erased = 0;
- break;
- }
- }
- }
-
- free(buffer);
-
- return ERROR_OK;
-}
+ struct str7x_flash_bank *str7x_info = bank->driver_priv;
+ target_t *target = bank->target;
-int str7x_protect_check(struct flash_bank_s *bank)
-{
- str7x_flash_bank_t *str7x_info = bank->driver_priv;
- target_t *target = str7x_info->target;
-
int i;
- int retval;
+ uint32_t retval;
- if (str7x_info->target->state != TARGET_HALTED)
+ if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
- target->type->read_memory(target, str7x_get_flash_adr(bank, FLASH_NVWPAR), 4, 1, (u8*)&retval);
+ target_read_u32(target, str7x_get_flash_adr(bank, FLASH_NVWPAR), &retval);
for (i = 0; i < bank->num_sectors; i++)
{
- if (retval & (mem_layout[i].reg_offset << i))
+ if (retval & str7x_info->sector_bits[i])
bank->sectors[i].is_protected = 0;
else
bank->sectors[i].is_protected = 1;
return ERROR_OK;
}
-int str7x_erase(struct flash_bank_s *bank, int first, int last)
+static int str7x_erase(struct flash_bank_s *bank, int first, int last)
{
- str7x_flash_bank_t *str7x_info = bank->driver_priv;
- target_t *target = str7x_info->target;
-
+ struct str7x_flash_bank *str7x_info = bank->driver_priv;
+ target_t *target = bank->target;
+
int i;
- u32 cmd;
- u32 retval;
- u32 erase_blocks;
-
- if (str7x_info->target->state != TARGET_HALTED)
+ uint32_t cmd;
+ uint32_t retval;
+ uint32_t sectors = 0;
+
+ if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
-
- erase_blocks = 0;
-
+
for (i = first; i <= last; i++)
- erase_blocks |= (mem_layout[i].reg_offset << i);
-
+ {
+ sectors |= str7x_info->sector_bits[i];
+ }
+
+ LOG_DEBUG("sectors: 0x%" PRIx32 "", sectors);
+
+ /* clear FLASH_ER register */
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_ER), 0x0);
+
cmd = FLASH_SER;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_CR0), 4, 1, (u8*)&cmd);
-
- cmd = erase_blocks;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_CR1), 4, 1, (u8*)&cmd);
-
- cmd = FLASH_SER|FLASH_WMS;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_CR0), 4, 1, (u8*)&cmd);
-
- while (((retval = str7x_status(bank)) & (FLASH_BSYA1|FLASH_BSYA2))){
- usleep(1000);
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), cmd);
+
+ cmd = sectors;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR1), cmd);
+
+ cmd = FLASH_SER | FLASH_WMS;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), cmd);
+
+ while (((retval = str7x_status(bank)) & str7x_info->busy_bits)) {
+ alive_sleep(1);
}
-
+
retval = str7x_result(bank);
-
- if (retval & FLASH_ERER)
- return ERROR_FLASH_SECTOR_NOT_ERASED;
- else if (retval & FLASH_WPF)
+
+ if (retval)
+ {
+ LOG_ERROR("error erasing flash bank, FLASH_ER: 0x%" PRIx32 "", retval);
return ERROR_FLASH_OPERATION_FAILED;
-
+ }
+
for (i = first; i <= last; i++)
bank->sectors[i].is_erased = 1;
return ERROR_OK;
}
-int str7x_protect(struct flash_bank_s *bank, int set, int first, int last)
+static int str7x_protect(struct flash_bank_s *bank, int set, int first, int last)
{
- str7x_flash_bank_t *str7x_info = bank->driver_priv;
- target_t *target = str7x_info->target;
+ struct str7x_flash_bank *str7x_info = bank->driver_priv;
+ target_t *target = bank->target;
int i;
- u32 cmd;
- u32 retval;
- u32 protect_blocks;
-
- if (str7x_info->target->state != TARGET_HALTED)
+ uint32_t cmd;
+ uint32_t retval;
+ uint32_t protect_blocks;
+
+ if (bank->target->state != TARGET_HALTED)
{
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
-
+
protect_blocks = 0xFFFFFFFF;
- if( set )
+ if (set)
{
for (i = first; i <= last; i++)
- protect_blocks &= ~(mem_layout[i].reg_offset << i);
+ protect_blocks &= ~(str7x_info->sector_bits[i]);
}
+ /* clear FLASH_ER register */
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_ER), 0x0);
+
cmd = FLASH_SPR;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_CR0), 4, 1, (u8*)&cmd);
-
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), cmd);
+
cmd = str7x_get_flash_adr(bank, FLASH_NVWPAR);
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_AR), 4, 1, (u8*)&cmd);
-
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_AR), cmd);
+
cmd = protect_blocks;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_DR0), 4, 1, (u8*)&cmd);
-
- cmd = FLASH_SPR|FLASH_WMS;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_CR0), 4, 1, (u8*)&cmd);
-
- while (((retval = str7x_status(bank)) & (FLASH_BSYA1|FLASH_BSYA2))){
- usleep(1000);
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_DR0), cmd);
+
+ cmd = FLASH_SPR | FLASH_WMS;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), cmd);
+
+ while (((retval = str7x_status(bank)) & str7x_info->busy_bits)) {
+ alive_sleep(1);
}
-
+
retval = str7x_result(bank);
-
+
+ LOG_DEBUG("retval: 0x%8.8" PRIx32 "", retval);
+
if (retval & FLASH_ERER)
return ERROR_FLASH_SECTOR_NOT_ERASED;
else if (retval & FLASH_WPF)
return ERROR_OK;
}
-int str7x_write(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count)
+static int str7x_write_block(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
{
- str7x_flash_bank_t *str7x_info = bank->driver_priv;
- target_t *target = str7x_info->target;
- u32 dwords_remaining = (count / 8);
- u32 bytes_remaining = (count & 0x00000007);
- u32 address = bank->base + offset;
- u32 *wordbuffer = (u32*)buffer;
- u32 bytes_written = 0;
- u32 cmd;
- u32 retval;
-
- if (str7x_info->target->state != TARGET_HALTED)
+ struct str7x_flash_bank *str7x_info = bank->driver_priv;
+ target_t *target = bank->target;
+ uint32_t buffer_size = 8192;
+ working_area_t *source;
+ uint32_t address = bank->base + offset;
+ reg_param_t reg_params[6];
+ armv4_5_algorithm_t armv4_5_info;
+ int retval = ERROR_OK;
+
+ uint32_t str7x_flash_write_code[] = {
+ /* write: */
+ 0xe3a04201, /* mov r4, #0x10000000 */
+ 0xe5824000, /* str r4, [r2, #0x0] */
+ 0xe5821010, /* str r1, [r2, #0x10] */
+ 0xe4904004, /* ldr r4, [r0], #4 */
+ 0xe5824008, /* str r4, [r2, #0x8] */
+ 0xe4904004, /* ldr r4, [r0], #4 */
+ 0xe582400c, /* str r4, [r2, #0xc] */
+ 0xe3a04209, /* mov r4, #0x90000000 */
+ 0xe5824000, /* str r4, [r2, #0x0] */
+ /* busy: */
+ 0xe5924000, /* ldr r4, [r2, #0x0] */
+ 0xe1140005, /* tst r4, r5 */
+ 0x1afffffc, /* bne busy */
+ 0xe5924014, /* ldr r4, [r2, #0x14] */
+ 0xe31400ff, /* tst r4, #0xff */
+ 0x03140c01, /* tsteq r4, #0x100 */
+ 0x1a000002, /* bne exit */
+ 0xe2811008, /* add r1, r1, #0x8 */
+ 0xe2533001, /* subs r3, r3, #1 */
+ 0x1affffec, /* bne write */
+ /* exit: */
+ 0xeafffffe, /* b exit */
+ };
+
+ /* flash write code */
+ if (target_alloc_working_area(target, 4 * 20, &str7x_info->write_algorithm) != ERROR_OK)
{
+ LOG_WARNING("no working area available, can't do block memory writes");
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ };
+
+ target_write_buffer(target, str7x_info->write_algorithm->address, 20 * 4, (uint8_t*)str7x_flash_write_code);
+
+ /* memory buffer */
+ while (target_alloc_working_area(target, buffer_size, &source) != ERROR_OK)
+ {
+ buffer_size /= 2;
+ if (buffer_size <= 256)
+ {
+ /* if we already allocated the writing code, but failed to get a buffer, free the algorithm */
+ if (str7x_info->write_algorithm)
+ target_free_working_area(target, str7x_info->write_algorithm);
+
+ LOG_WARNING("no large enough working area available, can't do block memory writes");
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+ }
+ }
+
+ armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC;
+ armv4_5_info.core_mode = ARMV4_5_MODE_SVC;
+ armv4_5_info.core_state = ARMV4_5_STATE_ARM;
+
+ init_reg_param(®_params[0], "r0", 32, PARAM_OUT);
+ init_reg_param(®_params[1], "r1", 32, PARAM_OUT);
+ init_reg_param(®_params[2], "r2", 32, PARAM_OUT);
+ init_reg_param(®_params[3], "r3", 32, PARAM_OUT);
+ init_reg_param(®_params[4], "r4", 32, PARAM_IN);
+ init_reg_param(®_params[5], "r5", 32, PARAM_OUT);
+
+ while (count > 0)
+ {
+ uint32_t thisrun_count = (count > (buffer_size / 8)) ? (buffer_size / 8) : count;
+
+ target_write_buffer(target, source->address, thisrun_count * 8, buffer);
+
+ buf_set_u32(reg_params[0].value, 0, 32, source->address);
+ buf_set_u32(reg_params[1].value, 0, 32, address);
+ buf_set_u32(reg_params[2].value, 0, 32, str7x_get_flash_adr(bank, FLASH_CR0));
+ buf_set_u32(reg_params[3].value, 0, 32, thisrun_count);
+ buf_set_u32(reg_params[5].value, 0, 32, str7x_info->busy_bits);
+
+ if ((retval = target_run_algorithm(target, 0, NULL, 6, reg_params, str7x_info->write_algorithm->address, str7x_info->write_algorithm->address + (19 * 4), 10000, &armv4_5_info)) != ERROR_OK)
+ {
+ LOG_ERROR("error executing str7x flash write algorithm");
+ retval = ERROR_FLASH_OPERATION_FAILED;
+ break;
+ }
+
+ if (buf_get_u32(reg_params[4].value, 0, 32) != 0x00)
+ {
+ retval = ERROR_FLASH_OPERATION_FAILED;
+ break;
+ }
+
+ buffer += thisrun_count * 8;
+ address += thisrun_count * 8;
+ count -= thisrun_count;
+ }
+
+ target_free_working_area(target, source);
+ target_free_working_area(target, str7x_info->write_algorithm);
+
+ destroy_reg_param(®_params[0]);
+ destroy_reg_param(®_params[1]);
+ destroy_reg_param(®_params[2]);
+ destroy_reg_param(®_params[3]);
+ destroy_reg_param(®_params[4]);
+ destroy_reg_param(®_params[5]);
+
+ return retval;
+}
+
+static int str7x_write(struct flash_bank_s *bank, uint8_t *buffer, uint32_t offset, uint32_t count)
+{
+ target_t *target = bank->target;
+ struct str7x_flash_bank *str7x_info = bank->driver_priv;
+ uint32_t dwords_remaining = (count / 8);
+ uint32_t bytes_remaining = (count & 0x00000007);
+ uint32_t address = bank->base + offset;
+ uint32_t bytes_written = 0;
+ uint32_t cmd;
+ int retval;
+ uint32_t check_address = offset;
+ int i;
+
+ if (bank->target->state != TARGET_HALTED)
+ {
+ LOG_ERROR("Target not halted");
return ERROR_TARGET_NOT_HALTED;
}
-
- if (offset + count > bank->size)
+
+ if (offset & 0x7)
+ {
+ LOG_WARNING("offset 0x%" PRIx32 " breaks required 8-byte alignment", offset);
+ return ERROR_FLASH_DST_BREAKS_ALIGNMENT;
+ }
+
+ for (i = 0; i < bank->num_sectors; i++)
+ {
+ uint32_t sec_start = bank->sectors[i].offset;
+ uint32_t sec_end = sec_start + bank->sectors[i].size;
+
+ /* check if destination falls within the current sector */
+ if ((check_address >= sec_start) && (check_address < sec_end))
+ {
+ /* check if destination ends in the current sector */
+ if (offset + count < sec_end)
+ check_address = offset + count;
+ else
+ check_address = sec_end;
+ }
+ }
+
+ if (check_address != offset + count)
return ERROR_FLASH_DST_OUT_OF_BANK;
-
+
+ /* clear FLASH_ER register */
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_ER), 0x0);
+
+ /* multiple dwords (8-byte) to be programmed? */
+ if (dwords_remaining > 0)
+ {
+ /* try using a block write */
+ if ((retval = str7x_write_block(bank, buffer, offset, dwords_remaining)) != ERROR_OK)
+ {
+ if (retval == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
+ {
+ /* if block write failed (no sufficient working area),
+ * we use normal (slow) single dword accesses */
+ LOG_WARNING("couldn't use block writes, falling back to single memory accesses");
+ }
+ else if (retval == ERROR_FLASH_OPERATION_FAILED)
+ {
+ /* if an error occured, we examine the reason, and quit */
+ retval = str7x_result(bank);
+
+ LOG_ERROR("flash writing failed with error code: 0x%x", retval);
+ return ERROR_FLASH_OPERATION_FAILED;
+ }
+ }
+ else
+ {
+ buffer += dwords_remaining * 8;
+ address += dwords_remaining * 8;
+ dwords_remaining = 0;
+ }
+ }
+
while (dwords_remaining > 0)
{
- // command
+ /* command */
cmd = FLASH_DWPG;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_CR0), 4, 1, (u8*)&cmd);
-
- // address
- cmd = address;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_AR), 4, 1, (u8*)&cmd);
-
- // data byte 1
- cmd = wordbuffer[bytes_written/4];
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_DR0), 4, 1, (u8*)&cmd);
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), cmd);
+
+ /* address */
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_AR), address);
+
+ /* data word 1 */
+ target_write_memory(target, str7x_get_flash_adr(bank, FLASH_DR0), 4, 1, buffer + bytes_written);
bytes_written += 4;
-
- // data byte 2
- cmd = wordbuffer[bytes_written/4];
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_DR1), 4, 1, (u8*)&cmd);
+
+ /* data word 2 */
+ target_write_memory(target, str7x_get_flash_adr(bank, FLASH_DR1), 4, 1, buffer + bytes_written);
bytes_written += 4;
-
+
/* start programming cycle */
- cmd = FLASH_DWPG|FLASH_WMS;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_CR0), 4, 1, (u8*)&cmd);
-
- while (((retval = str7x_status(bank)) & (FLASH_BSYA1|FLASH_BSYA2))){
- usleep(1000);
+ cmd = FLASH_DWPG | FLASH_WMS;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), cmd);
+
+ while (((retval = str7x_status(bank)) & str7x_info->busy_bits))
+ {
+ alive_sleep(1);
}
-
+
retval = str7x_result(bank);
-
+
if (retval & FLASH_PGER)
return ERROR_FLASH_OPERATION_FAILED;
else if (retval & FLASH_WPF)
dwords_remaining--;
address += 8;
}
-
- while( bytes_remaining > 0 )
+
+ if (bytes_remaining)
{
- // command
- cmd = FLASH_WPG;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_CR0), 4, 1, (u8*)&cmd);
-
- // address
- cmd = address;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_AR), 4, 1, (u8*)&cmd);
-
- // data byte
- cmd = buffer[bytes_written];
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_DR0), 4, 1, (u8*)&cmd);
-
+ uint8_t last_dword[8] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+ int i = 0;
+
+ while (bytes_remaining > 0)
+ {
+ last_dword[i++] = *(buffer + bytes_written);
+ bytes_remaining--;
+ bytes_written++;
+ }
+
+ /* command */
+ cmd = FLASH_DWPG;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), cmd);
+
+ /* address */
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_AR), address);
+
+ /* data word 1 */
+ target_write_memory(target, str7x_get_flash_adr(bank, FLASH_DR0), 4, 1, last_dword);
+ bytes_written += 4;
+
+ /* data word 2 */
+ target_write_memory(target, str7x_get_flash_adr(bank, FLASH_DR1), 4, 1, last_dword + 4);
+ bytes_written += 4;
+
/* start programming cycle */
- cmd = FLASH_WPG|FLASH_WMS;
- target->type->write_memory(target, str7x_get_flash_adr(bank, FLASH_CR0), 4, 1, (u8*)&cmd);
-
- while (((retval = str7x_status(bank)) & (FLASH_BSYA1|FLASH_BSYA2))){
- usleep(1000);
+ cmd = FLASH_DWPG | FLASH_WMS;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), cmd);
+
+ while (((retval = str7x_status(bank)) & str7x_info->busy_bits))
+ {
+ alive_sleep(1);
}
-
+
retval = str7x_result(bank);
-
+
if (retval & FLASH_PGER)
return ERROR_FLASH_OPERATION_FAILED;
else if (retval & FLASH_WPF)
return ERROR_FLASH_OPERATION_FAILED;
-
- address++;
- bytes_remaining--;
- bytes_written++;
}
-
+
+ return ERROR_OK;
+}
+
+static int str7x_probe(struct flash_bank_s *bank)
+{
return ERROR_OK;
}
-int str7x_probe(struct flash_bank_s *bank)
+#if 0
+COMMAND_HANDLER(str7x_handle_part_id_command)
{
return ERROR_OK;
}
+#endif
-int str7x_handle_part_id_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+static int str7x_info(struct flash_bank_s *bank, char *buf, int buf_size)
{
+ snprintf(buf, buf_size, "str7x flash driver info");
return ERROR_OK;
}
-int str7x_erase_check(struct flash_bank_s *bank)
+COMMAND_HANDLER(str7x_handle_disable_jtag_command)
{
- return str7x_blank_check(bank, 0, bank->num_sectors - 1);
+ target_t *target = NULL;
+ struct str7x_flash_bank *str7x_info = NULL;
+
+ uint32_t flash_cmd;
+ uint16_t ProtectionLevel = 0;
+ uint16_t ProtectionRegs;
+
+ if (argc < 1)
+ {
+ command_print(cmd_ctx, "str7x disable_jtag <bank>");
+ return ERROR_OK;
+ }
+
+ flash_bank_t *bank;
+ int retval = flash_command_get_bank_by_num(cmd_ctx, args[0], &bank);
+ if (ERROR_OK != retval)
+ return retval;
+
+ str7x_info = bank->driver_priv;
+
+ target = bank->target;
+
+ if (target->state != TARGET_HALTED)
+ {
+ LOG_ERROR("Target not halted");
+ return ERROR_TARGET_NOT_HALTED;
+ }
+
+ /* first we get protection status */
+ uint32_t reg;
+ target_read_u32(target, str7x_get_flash_adr(bank, FLASH_NVAPR0), ®);
+
+ if (!(reg & str7x_info->disable_bit))
+ {
+ ProtectionLevel = 1;
+ }
+
+ target_read_u32(target, str7x_get_flash_adr(bank, FLASH_NVAPR1), ®);
+ ProtectionRegs = ~(reg >> 16);
+
+ while (((ProtectionRegs) != 0) && (ProtectionLevel < 16))
+ {
+ ProtectionRegs >>= 1;
+ ProtectionLevel++;
+ }
+
+ if (ProtectionLevel == 0)
+ {
+ flash_cmd = FLASH_SPR;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), flash_cmd);
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_AR), 0x4010DFB8);
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_DR0), 0xFFFFFFFD);
+ flash_cmd = FLASH_SPR | FLASH_WMS;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), flash_cmd);
+ }
+ else
+ {
+ flash_cmd = FLASH_SPR;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), flash_cmd);
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_AR), 0x4010DFBC);
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_DR0), ~(1 << (15 + ProtectionLevel)));
+ flash_cmd = FLASH_SPR | FLASH_WMS;
+ target_write_u32(target, str7x_get_flash_adr(bank, FLASH_CR0), flash_cmd);
+ }
+
+ return ERROR_OK;
}
-int str7x_info(struct flash_bank_s *bank, char *buf, int buf_size)
+static int str7x_register_commands(struct command_context_s *cmd_ctx)
{
- snprintf(buf, buf_size, "str7x flash driver info" );
+ command_t *str7x_cmd = register_command(cmd_ctx, NULL, "str7x",
+ NULL, COMMAND_ANY, "str7x flash specific commands");
+
+ register_command(cmd_ctx, str7x_cmd, "disable_jtag",
+ str7x_handle_disable_jtag_command, COMMAND_EXEC,
+ "disable jtag access");
+
return ERROR_OK;
}
+
+struct flash_driver str7x_flash = {
+ .name = "str7x",
+ .register_commands = &str7x_register_commands,
+ .flash_bank_command = &str7x_flash_bank_command,
+ .erase = &str7x_erase,
+ .protect = &str7x_protect,
+ .write = &str7x_write,
+ .probe = &str7x_probe,
+ .auto_probe = &str7x_probe,
+ .erase_check = &default_flash_blank_check,
+ .protect_check = &str7x_protect_check,
+ .info = &str7x_info,
+ };
Code Review / openocd.git / blobdiff